Selective isopropylidenation of the 2,3- and 5,6-hydroxy groups of 1-[(tert-butoxycarbonyl)amino]-1-deoxy-D-glucitol 5b led to the diacetonide 6 which was converted in seven steps to the selectively protected 6-azido compound 3, a valuable precursor of various derivatives of 6-amino-1,6-dideoxynojirimycin 4b.
对 1-[(叔丁氧羰基)
氨基]-1-脱氧-
D-葡萄糖醇 5b 的 2,3- 和 5,6- 羟基进行选择性异亚丙基化,可得到二
丙酮 6,再经过七个步骤转化为选择性保护的 6-
叠氮化合物 3,这是 6-
氨基-1,6-二脱氧尻霉素 4b 各种衍
生物的重要前体。